netdev - [PATCH net-next 05/10] netfilter: nft_payload: access ipip payload for inner offset

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Message-Id: <20221026132227.3287-6-pablo@netfilter.org>
Date:   Wed, 26 Oct 2022 15:22:22 +0200
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     netfilter-devel@...r.kernel.org
Cc:     davem@...emloft.net, netdev@...r.kernel.org, kuba@...nel.org,
        pabeni@...hat.com, edumazet@...gle.com
Subject: [PATCH net-next 05/10] netfilter: nft_payload: access ipip payload for inner offset

ipip is an special case, transport and inner header offset are set to
the same offset to use the upcoming inner expression for matching on
inner tunnel headers.

Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
 net/netfilter/nft_payload.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/netfilter/nft_payload.c b/net/netfilter/nft_payload.c
index 03a1f271bf4f..84b490d6cc75 100644
--- a/net/netfilter/nft_payload.c
+++ b/net/netfilter/nft_payload.c
@@ -132,6 +132,9 @@ static int __nft_payload_inner_offset(struct nft_pktinfo *pkt)
 		pkt->inneroff = thoff + offset;
 		}
 		break;
+	case IPPROTO_IPIP:
+		pkt->inneroff = thoff;
+		break;
 	default:
 		return -1;
 	}
-- 
2.30.2